The Fatigue of Metals

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Excerpt from The Fatigue of Metals: With Chapters on the Fatigue of Wood and of ConcreteOne of the purposes of the authors in writing this book is to summarize the more important experimental facts concerning the strength of metals under repeated stress. Another purpose is to review. Brie¿y the more important of the current theories of fatigue of metals. A third purpose is to give a brief description of appa ratus and methods used in making an experimental study of the fatigue of metals.In compiling tables of results of tests of various materials, the guiding principle has been to make available to the reader, in compact and convenient form, typical results for various mate rials, giving in each case as complete a statement as possible of the chemical composition and heat treatment Of each metal. This, it is believed, will enable the reader to form some judgment as to what may normally be expected from these metals. The results quoted are, for all the metals reported, obtained from test data of tests covering a sufficient number of repetitions of stress to render the results reliable.It has been necessary to refer frequently to the use of the ordinary formulas of mechanics of materials, or to the elaborate mathematical methods of the theory of elasticity. For readers who may wish to refresh their memory of such formulas and analyses, reference is made to various standard texts on the mechanics of materials (such as Boyd, Seely, Merriman, Poorman, Maurer and Withey), and for those who have the time and the inclination to study the theory of elasticity, to Love' s great work, Mathematical Theory of Elasticity.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.